Marinco’s heavy-duty GalvanAlert offers a visual check for AC problems.
Billed as “the world’s only shorepower corrosion detector with reverse polarity indicator” by West Marine, Marinco’s new Galvan-Alert attaches to your existing 30-amp shorepower inlet and power cord and monitors galvanic and stray current corrosion flowing through the green ground wire ground of your shorepower system. Appearance-wise, the GalvanAlert is similar to a miniature Marinco power cord. It is well constructed and utilizes the same plugs, connectors, and locking rings that are familiar to most every boater with an AC shorepower cord. The GalvanAlert has four LED indicators—a green LED to indicate power, a red LED indicating reverse polarity, and two other LEDs to show “medium” (green) and “high” (red) galvanic corrosion activity.